Lansurf OA7 is a nonionic surfactant produced by ethoxylating oleic acid with approximately seven moles of ethylene oxide. It provides excellent emulsifying, wetting, and solubilising properties and demonstrates broad compatibility with nonionic, anionic, cationic, and amphoteric surfactants. Lansurf OA7 is commonly used in
emulsions, detergents, and formulations requiring effective wetting and dispersion, particularly where a slightly more lipophilic balance is desired compared to higher ethoxylates.
Applications
Detergents & Industrial Cleaners
- Emulsifies oils and greases in heavy-duty cleaning formulations.
- Used in hard-surface cleaners and degreasers.
Textile & Leather Processing
- Wetting agent and emulsifier in scouring and dyeing.
- Improves penetration of dyes and chemicals.
Agriculture
- Emulsifier in emulsifiable concentrates (ECs) for pesticides and herbicides.
- Enhances spreading and wetting on plant surfaces.
Personal Care & Cosmetics
- Emulsifier in creams, lotions, and hair care products.
- Provides good skin compatibility and mildness.
Paints, Coatings & Inks
- Dispersing agent for pigments and fillers.
- Improves flow and stability in waterborne systems.
Metalworking Fluids
- Component in emulsifiable oils for lubrication and cooling.
- Helps maintain emulsion stability and corrosion protection.
Polymer & Adhesives
- Emulsifier in polymer emulsions and adhesive formulations.
- Assists in particle stabilisation during polymerisation.
Specification
Appearance at 25°C
Clear amber liquid free from foreign matter
Saponification value mg.KOH/g
93.0 - 103.0
Acid value mg.KOH/g
1 max
Typical Properties
Composition
PEG MonoOleate - alkoxylated
Odour
Characteristic
Viscosity at 25°C (cP)
88
Density at 25°C
0.95–1.05 g/cm³
Biodegradability
Readily biodegradable
CAS number
9004-96-0
HLB value
10.4
Specific gravity at 20°C
0.96
Solubility
Soluble in water, alcohols, and many organic solvents
Ionic Character
Nonionic
Active content %
100
pH (1% aqueous solution)
6 - 8
Pour point °C
-3
Flash point closed cup °C
>61